18705918

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2131}}^1$

素因数の和:2173

約数の個数: 64

約数和(自身を含む): 49121280

約数和(自身を除く): 30415362

約数列:

[1, 2, 3, 6, 7, 11, 14, 19, 21, 22, 33, 38, 42, 57, 66, 77, 114, 133, 154, 209, 231, 266, 399, 418, 462, 627, 798, 1254, 1463, 2131, 2926, 4262, 4389, 6393, 8778, 12786, 14917, 23441, 29834, 40489, 44751, 46882, 70323, 80978, 89502, 121467, 140646, 164087, 242934, 283423, 328174, 445379, 492261, 566846, 850269, 890758, 984522, 1336137, 1700538, 2672274, 3117653, 6235306, 9352959, 18705918]

約数ペア:

[(1, 18705918), (2, 9352959), (3, 6235306), (6, 3117653), (7, 2672274), (11, 1700538), (14, 1336137), (19, 984522), (21, 890758), (22, 850269), (33, 566846), (38, 492261), (42, 445379), (57, 328174), (66, 283423), (77, 242934), (114, 164087), (133, 140646), (154, 121467), (209, 89502), (231, 80978), (266, 70323), (399, 46882), (418, 44751), (462, 40489), (627, 29834), (798, 23441), (1254, 14917), (1463, 12786), (2131, 8778), (2926, 6393), (4262, 4389)]